Can jewish people leave the house during pover?

They can leave the house, the only provision for Pover is not to eay Chumatz, or levened bread. Some have extended it to foods such as corn, but that is determined by what sect of Judaism you are. On Shabbat, from Friday at sundown to Saturday at sundown no "work" can be done. An electronic switch is deemed work by some because a spark is created, which is decribed as work. This is the same for driving. They can leave their houses as you will see orthodox Jews walking to Shul on Saturday. And you BQ is true for specific sects.